Integrated urban water system interactions: Complementarity among urban water services


	Urbanisation in the world Urbanization process is a domain of developing countries. One of the results of the extremely high densities of fast-growing populations is "wild development", leading to such negative social and ecological effects as: [...] + more Water cycle in urban areas Combined effects of urbanization, industrialization, and population growth greatly modify landscapes and thus the continuous circulation of water within catchments and the Earth's hydrosphere - the hydrological cycle [...] + more Urban Aquatic Habitats Aquatic habitats are water bodies supporting aquatic life. Increased temperatures of effluents, greater discharges of water, pollutants and waste, and changes in water bodies morphology impact all the basic habitats characteristics. [...] + more Urban Aquatic Habitats Management A balanced approach addressing the pressing issues in urban environment is not common in the water service sector [...] + more Ecohydrology for Urban Aquatic Habitats From the point of view of environmental science, urban environment can be considered as a highly condensed anthropogenic system, which is organised for efficient flow of water, matter, energy and information [...] + more

No. : 4
Name of activity:	Integrated urban water system interactions: Complementarity among urban water services
Objective:	Expanded knowledge base related to the interactions of man-made systems in the urban environment and development applicable tools and approaches for analysis such as: Mutual interactions of UW systems (water supply, wastewater and stormwater drainage and their effects on the systems’ performance Wastewater design tools, integrating wastewater reuse and solid waste Evaluation tools/models for new technologies combining wastewater, solid waste, with resources socio-economic, health, reliability, efficiency etc.

Description:	Development of approaches for urban water management under present and future development and climate variation scenarios: Better management of water supply: water demand (water quality, quantity and distribution), water conservation, impacts of climate change Sustainable development and guidelines for new alternative water supply based on alternative and non conventional water resources such as stormwater harvesting, recycling and reuse Coping with climate change effects on flood, extremes events and human health Assessment of the impact of urbanisation on wastewater management Wastewater management interaction with solid waste management and air pollution, division point and non point source pollution Assessment of urban streams, rivers, ponds, lakes, wetlands and reservoir systems and their impact on sustainable water supply Criteria for combined and separate urban sewer systems in developing countries Wastewater deign in household, separation and pollutant control Risk analysis for design under specific climates (cold, arid and semi-arid, humid tropics and temperate) and developing countries with economic constraints Development of methodologies for integrated catchment management comprising urban centres

Implementation strategy:	Multidisciplinary working group

Implementation mechanism:	Seminar on integrated urban water system interaction. The seminar will focus on evaluation tools for urban water and waste interactions, as well as wastewater separation and pollution control in households. Document tools (paper and computer models)

Expected results:	Planning guidelines and toll kits for selecting future technology for urban water supply and sanitation (software basis)

Beneficiary groups:	Water and environment professionals (Professional NGOs)

Expected executing and supporting partners:	IWA, MAB, National IHP Committees, COST, at Regional level RCUWM Tehran

Duration/schedule:	5 years

Proposed co-ordinator/focal point:	Mogens Henze (co-ordinator), Peter Steen Mikkelsen (Technical University of Danemark), Niels Thygesen (Danish University Consortium for Env. and Devt. of Urban Areas and industry, Ahmad Abrishamchi, Massoud Tajrishi (Sharif Univ. of Tech. Iran). Other potential participants: Ralf Otterpohl (Hamburg Technical University) and Takashi Asano (UC Davis).

Financial implications:	--